Home / 7,134.20-10,703.12-2,972.84

Finding the Fourth Proportional to 7,134.20, 10,703.12 and 2,972.84

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Solution

The fourth proportional to 7,134.20, 10,703.12 and 2,972.84 is: 4,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.20 : 10,703.12 = 2,972.84 : x
  2. Step 2: Convert to fraction form
    7,134.20/10,703.12 = 2,972.84/x
  3. Step 3: Cross multiply
    7,134.20x = 10,703.12 × 2,972.84
  4. Step 4: Simplify right side
    7,134.20x = 31,818,663.26
  5. Step 5: Solve for x
    x = 31,818,663.26/7,134.20
  6. Step 6: Final answer
    x = 4,460.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.